Fiancé likes the best man
I have been with my girlfriend for 2 years, and have a loving relationship, we are due to get married next year also we are very good together, however she has only met my best friend a couple of times.. which I have asked him to be my best man at the wedding, my best friend is a singer/performer at small pubs/clubs at weekends and I decided to take my fiancé along to watch his show, also my best friend has a girlfriend and her and the family were also at the show watching him, but anyway so I took my fince along to watch and we sat down opposite each other at a table with a drink and the show began, from the get go it was clear she was looking way too hard at him after 20mins or so it was like I wasn't even in the same room as her, she was clearly giving my best friend the eye and looking way too hard, I got upset maybe overreacted and walked out the pub on her, rang a taxi and went straight home.. over the last few days since this I have felt really sad and upset, and it got to the point were we have had a big argument over it and she admitted that she fancied him, which has kind of broke my heart, she says she loves me but I can't get it out of my head what's happened.. part of me wants to try to ignore it and part of me says to end it, I'm really confussed on what to do, any advice would be welcome. Thank you